CVE-2018-5521: f5 networks, inc. big-ip (ltm, aam, afm, analytics, apm, asm, dns, edge gateway, fps, gtm, link controller, pem, webaccelerator) Cross-site Scripting
CVSS: 6.1v3.0MediumModified
Published 01-06-2018Last modified 17-09-2024
Vulnerability summary
CVE-2018-5521 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in f5 networks, inc. big-ip (ltm, aam, afm, analytics, apm, asm, dns, edge gateway, fps, gtm, link controller, pem, webaccelerator). EPSS estimates a 0.89% chance of exploitation in the next 30 days, higher than 58.6% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.0 (NVD)EPSS score
0.89%
0%100%
Low · -0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 01-06-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
On F5 BIG-IP 12.1.0-12.1.3.1, 11.6.1-11.6.3.1, 11.5.1-11.5.5, or 11.2.1, carefully crafted URLs can be used to reflect arbitrary content into GeoIP lookup responses, potentially exposing clients to XSS.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.89%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
-0.03 pp
From 0.92% on 18-09-2026
18-09-202618-10-2026
EPSS score0.89%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
F513 products
- big-ip_access_policy_manager≥ 11.5.1, ≤ 11.5.5 | ≥ 11.6.1, ≤ 11.6.3 | ≥ 12.1.0, ≤ 12.1.3 | 11.2.1
- big-ip_advanced_firewall_manager≥ 11.5.1, ≤ 11.5.5 | ≥ 11.6.1, ≤ 11.6.3 | ≥ 12.1.0, ≤ 12.1.3 | 11.2.1
- big-ip_analytics≥ 11.5.1, ≤ 11.5.5 | ≥ 11.6.1, ≤ 11.6.3 | ≥ 12.1.0, ≤ 12.1.3 | 11.2.1
- big-ip_application_acceleration_manager≥ 11.5.1, ≤ 11.5.5 | ≥ 11.6.1, ≤ 11.6.3 | ≥ 12.1.0, ≤ 12.1.3 | 11.2.1
- big-ip_application_security_manager≥ 11.5.1, ≤ 11.5.5 | ≥ 11.6.1, ≤ 11.6.3 | ≥ 12.1.0, ≤ 12.1.3 | 11.2.1
F5 networks, inc.1 product
- big-ip (ltm, aam, afm, analytics, apm, asm, dns, edge gateway, fps, gtm, link controller, pem, webaccelerator)12.1.0-12.1.3.1 | 11.6.1-11.6.3.1 | 11.5.1-11.5.5 | 11.2.1
2 vendors · 14 products